Reid - 8:11 am on Jun 3, 2006 (gmt 0)
google may still crawl disallowed areas looking for TOS violations ect. But it should not index it. A URL only listing just shows that google (knows it exists) but doesn't mean it gets called up in searches.
I have had immediate success using the URL removal tool, and I use 410, can't say for sure that 410 will cause something to be removed.